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Magnetic recording and reproducing device

阅读:871发布:2024-02-13

专利汇可以提供Magnetic recording and reproducing device专利检索,专利查询,专利分析的服务。并且PURPOSE: To automatically lower the recording level of a first signal than the recording level of other recording signal and to eliminate an adjustment by recording the signal of the frequency larger than a recordable maximum frequency at the section of the half period of the recording signal.
CONSTITUTION: A pilot signal f
1 is inputted to a terminal 12, a recording signal is inputted to a terminal 11 and a gate 15 separates and output f
1 from the recording signal. In a gate 16, a clock from a generating circuit 14 is outputted only during the half period when the f
1 is 'H'. To a gate 17, a signal to invert 18 the f
1 and the recording signal are inputted and the recording signal excluding the f
1 is separated and outputted. Respective outputs of gates 16 and 17 are added by a gate 19 and the output is supplied to a control circuit 20. A variable resistance 21 is adjusted so that the recording signal except the f
1 can be a level suitable to a standard. The circuit 20 controls and sends the recording signal to a prescribed level and this is recorded to a magnetic tape.
COPYRIGHT: (C)1988,JPO&Japio,下面是Magnetic recording and reproducing device专利的具体信息内容。

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